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Associated Press
Associate Administrator for the Science Mission Directorate John Grunsfeld, left, and NASA Jet Propulsion Laboratory (JPL) director Charles Elachi present an overview of the status and plans for NASA's Science Mission Directorate at JPL in Pasadena, Calif., Sunday, Aug. 5, 2012. After traveling 8 1/2 months and 352 million miles, Curiosity will attempt a landing on Mars Sunday night. In keeping with a decades-old tradition, peanuts will be passed around the mission control room at the NASA Jet Propulsion Laboratory for good luck. (AP Photo/Damian Dovarganes)

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